U.S. patent number 7,115,076 [Application Number 10/929,278] was granted by the patent office on 2006-10-03 for treadmill control system.
This patent grant is currently assigned to Brunswick Corporation. Invention is credited to Christopher E. Clawson, John Danile, James B. Fox, Emil S. Golen, Jr., Robert D. Kohan, Kenneth F. Lantz, Gary E. Oglesby, Timothy J. Porth, Daniel R. Willie.
United States Patent |
7,115,076 |
Oglesby , et al. |
October 3, 2006 |
Treadmill control system
Abstract
A microprocessor based exercise treadmill control system is
disclosed which includes various features to enhance user
operation. These features include programs operative to: permit a
set of user controls to cause the treadmill to initially operate at
predetermined speeds; permit the user to design custom workouts;
permit the user to switch between workout programs while the
treadmill is in operation; and perform an automatic cooldown
program where the duration of the cooldown is a function of the
duration of the workout or the user's heart rate. The features also
include a stop program responsive to a detector for automatically
stopping the treadmill when a user is no longer on the treadmill
and a frame tag module attached to the treadmill frame having a
non-volatile memory for storing treadmill configuration, and
operational and maintenance data. Another included feature is the
ability to display the amount of time a user spends in a heart rate
zone.
Inventors: |
Oglesby; Gary E. (Manhattan,
IL), Golen, Jr.; Emil S. (Barrington, IL), Fox; James
B. (Elk Grove Village, IL), Danile; John (Algonquin,
IL), Kohan; Robert D. (Naperville, IL), Clawson;
Christopher E. (Palatine, IL), Lantz; Kenneth F.
(Poquoson, VA), Willie; Daniel R. (St. Louis Park, MN),
Porth; Timothy J. (Bloomington, MN) |
Assignee: |
Brunswick Corporation (Lake
Forest, IL)
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Family
ID: |
34109058 |
Appl.
No.: |
10/929,278 |
Filed: |
August 27, 2004 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20050026750 A1 |
Feb 3, 2005 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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09944142 |
Sep 4, 2001 |
6783482 |
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09651249 |
Aug 30, 2000 |
6626803 |
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60152657 |
Sep 7, 1999 |
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Current U.S.
Class: |
482/54; 482/9;
482/900; 482/8 |
Current CPC
Class: |
A63B
22/0023 (20130101); A63B 22/0242 (20130101); A63B
24/00 (20130101); A63B 24/0006 (20130101); A63B
24/0062 (20130101); A63B 22/025 (20151001); A63B
2024/0009 (20130101); A63B 2024/0068 (20130101); A63B
2024/0078 (20130101); A63B 2024/0093 (20130101); A63B
2220/13 (20130101); A63B 2220/833 (20130101); A63B
2225/50 (20130101); A63B 2230/04 (20130101); A63B
2230/062 (20130101); A63B 2230/065 (20130101); Y10S
482/90 (20130101); A63B 2230/067 (20130101) |
Current International
Class: |
A63B
21/00 (20060101); A63B 22/00 (20060101) |
Field of
Search: |
;482/1-9,51,54,900-902 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Richman; Glenn E.
Attorney, Agent or Firm: McMurry; Michael B.
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a divisional application of Ser. No.
09/944,142, filed Sep. 4, 2001, now U.S. Pat. No. 6,783,482, which
in turn is a continuation in part of application Ser. No.
09/651,249, filed Aug. 30, 2000, now U.S. Pat. No. 6,626,803, and
claims priority on U.S. Provisional Patent Application Ser. No.
60/152,657, Filed Sep. 7, 1999.
Claims
We claim:
1. An exercise aerobic exercise apparatus, comprising: a mechanism
for permitting a user to exercise aerobically; a heart rate monitor
for measuring the user's heart rate; a control system operatively
connected to said mechanism and said heart rate monitor; a control
panel secured to said mechanism and operatively connected to said
control system wherein said control panel includes at least one
display and a set of user controls for controlling said mechanism,
to permit a user to operate said mechanism for a workout; and a
time in zone program operatively connected to said control system
for generating in said display at periodic intervals during said
workout an indication as to how much time the user's heart rate is
in a predetermined zone.
2. The exercise apparatus of claim 1 wherein said user controls
accept a target heart rate from the user and said time in zone
program computes said zone from said target heart rate.
3. The exercise apparatus of claim 1 wherein said time in zone
program additionally generates in said display an indication that
the user is entering said zone.
4. The exercise apparatus of claim 1 wherein said time in zone
program additionally generates in said display an indication that
the user is leaving said zone.
5. The exercise apparatus of claim 1 wherein said control system
contains a set of workout programs and said time in zone program
computes said zone from said workout programs.
6. The apparatus of claim 1 wherein said control system
additionally computes and displays on said display at the
conclusion of said workout the percentage of time the user's heart
rate was in said predetermined zone during said workout.
7. The apparatus of claim 5 wherein said workout program is a fat
burn program and said predetermined zone is approximately between
60 percent and 72 percent of a calculated maximal heart rate for
the user.
8. The apparatus of claim 5 wherein said workout program is a
cardio workout program and said predetermined zone is approximately
between 72 percent and 84 percent of a calculated maximal heart
rate for the user.
9. The apparatus of claim 7 wherein said calculated maximal heart
rate is approximately equal to 220 minus the age of the user.
10. The apparatus of claim 1 wherein said predetermined zone is
approximately 10 heart beats below and 10 heart beats above a
target heart rate entered by the user in said control panel.
Description
FIELD OF THE INVENTION
This invention generally relates to exercise equipment and in
particular to exercise treadmills having control systems utilizing
microprocessors.
BACKGROUND OF THE INVENTION
Exercise treadmills are widely used for performing walking or
running aerobic-type exercise while the user remains in a
relatively stationary position. In addition exercise treadmills are
used for diagnostic and therapeutic purposes. Generally, for all of
these purposes, the person on the treadmill performs an exercise
routine at a relatively steady and continuous level of physical
activity. One example of such a treadmill is provided in U.S. Pat.
No. 5,752,897.
Although exercise treadmills that operate using a microprocessor
based control system have reached a relatively high state of
development, there are a number of significant improvements in the
program software that can improve the user's exercise
experience.
SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide an exercise
treadmill having improved user programs.
A further object of the invention is to provide a treadmill having
a control panel that includes a standard set of user controls with
a second set of quick start user controls that permits the user to
select certain predetermined treadmill operating parameters such as
speed to initiate a workout or to change to one of the
predetermined speeds during a workout.
Another object of the invention is to provide a treadmill having a
control panel that includes user controls that permit the user to
program custom user workouts which have certain operating
parameters such as speed and inclination where the custom workouts
have greater flexibility than the standard workouts normally
programed in a treadmill.
An additional object of the invention is to permit the user to
switch programs while the treadmill is operating by merely pressing
a particular program button without having to stop the treadmill
and start a new program.
A further object of the invention is to provide an automatic
cooldown feature that automatically begins upon conclusion of the
user's workout where the duration of the cooldown is determined by
the length of time of the user's workout and where the treadmill
includes a heart rate management system, the cooldown can be
terminated by the user's heart rate reaching 60% of maximal.
Another object of the invention is to increase the frequency of
display information on the user display that is relevant to the
manner in which the treadmill is being used and to decrease the
frequency of the display information that is not relevant.
A still further object of the invention is to provide a user detect
feature that can use a detector such as an IR receiver/transmitter
to stop the operation of the treadmill in order to overcome the
problem of users leaving treadmills before the end of their
programs which can result in treadmills continuing to run for a
period of time. This feature can be further enhanced by using
treadmill operating criteria such as key pad or motor controller
activity to determine if a user is on the treadmill.
Yet an additional object of the invention is to provide a frame tag
module secured to the frame of the treadmill and that includes a
nonvolatile electrically erasable programmable memory chip and a
real time clock.
It is also an object of the invention to provide a treadmill with a
quick start feature.
Another object of the invention is to provide a display of the
amount of time a user spends in a specified heart rate zone.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1. is a perspective view of an assembled exercise treadmill
according to the invention;
FIG. 2 is a block diagram of the control system for the treadmill
of FIG. 1;
FIG. 3 is a plan view quick start/quick speed control including a
set of user switches for a quick start feature for use with the
control system of FIG. 1;
FIGS. 4 and 5 are flow charts illustrating the operation of the
quick start/quick speed control of FIG. 3;
FIGS. 6 and 7 are flow charts illustrating the operation of a
custom workout feature for use with the control system of FIG.
2;
FIG. 8 is a flow chart illustrating the operation of the control
system of FIG. 2 to implement a feature whereby the user can select
a new workout program while the treadmill of FIG. 1 is operating in
another workout program;
FIGS. 9 and 10A B are flow charts illustrating the operation of an
automatic cooldown feature for use with the control system of FIG.
2;
FIG. 11 is a data flow diagram for a user detect feature for use
with the treadmill of FIGS. 1 and 2;
FIGS. 12A C are flow charts further illustrating the operation of
the user detect feature of FIG. 11; and
FIG. 13 is a flow chart illustrating the operation of a time in
heart rate zone feature for use with the treadmill of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the general outer configuration of an exercise
treadmill 10, according to the invention. The treadmill includes a
control panel 12 having a set of displays 14; a set of workout
program control buttons 16; a set of operational controls 18 22
including a pair of time control buttons 18, a pair of incline
control buttons 20 and a pair of speed control buttons 22; a
numerical keypad 24; and a stop button 26. In addition, the
treadmill 10 includes such conventional treadmill elements such as
a belt 28, a deck 30 and an inclination mechanism 32 of the type
described in U.S. Pat. No. 6,095,951.
FIG. 2 is a representative block diagram of a control system 34 for
the treadmill 10. The control system 34 is generally similar to the
treadmill control systems of the type shown in FIG. 16 of U.S. Pat.
No. 6,095,951 and controls an AC motor 38 having a motor controller
36 to propel the belt 28. The control system 34 uses a
microprocessor based system controller 40 to control the control
panel displays 14 including a message display 14, the user controls
16 22 and 26 along with the keypad 24, an optional remote display
42 and a remote keypad 44. In addition, the control system 34
serves to control a heart rate monitoring system of the type
described in U.S. Pat. No. 5,313,487 utilizing a set of pulse
sensors 46 and a deck or belt lubrication system 48 of the type
shown in U.S. Pat. No. 5,433,679 along with the inclination
mechanism 32. The control system also controls a user detect or
sense system 50.
FIGS. 3 5 illustrate a quick start feature that can be implemented
in the control system 34. In particular, a quick start keypad 52
can be attached to the control panel 12 or some other part of the
treadmill 10. The keypad 52 is provided with a set of three
buttons: a walk button 54, a jog button 56 and a run button 58 that
can be used by the user to immediately initiate a workout or change
a workout having preferably a predetermined speed, for example
corresponding to walk, jog or run. The operational controls 18 22
can also be used to set other predetermine workout parameters such
as inclination, time, distance or calories. User operation is
described in FIG. 4 and operation of the program is described in
the flow chart of FIG. 5. Along with a quick start, as indicated in
FIGS. 4 and 5, the keypad 52 can be used by the user to immediately
implement the predetermined speeds or other workout parameters
while another workout is in progress. In addition, it is also
possible to use a single quick start button 59 on the control panel
12 in combination with the operational controls 18 22 to initiate
the quick start feature.
FIGS. 6 and 7 are flow charts describing the logic of a preferred
embodiment of a custom workout program that can be implemented in
the control system 34. Generally, this feature permits a user or
his trainer to use the control keys 18 22, the keypad 24 and the
displays 14 to design and program into the control system 34 a
custom workout having greater flexibility than the standard
workouts normally programed in a treadmill. For example as
described in FIGS. 6 and 7, the trainer can define a heart rate
workout utilizing the pulse sensors and heart rate management
system 46 consisting of a series of segments, up to 30, of a fixed
duration in seconds, each segment containing a predetermined target
heart rate. As indicated at a block 60 in the flow charts of FIGS.
6 and 7, the user can select the custom program mode by pressing a
custom button 62 which is one of the program buttons 16 on the
control panel 12. In this case the heart rate management program
can be used to control the inclination mechanism 32 of the
treadmill 10 thereby regulating the user's heart rate for each
interval or segment of the program. Also, custom interval hill
workouts can be designed where each segment of the workout
represents a different incline of the treadmill 10. Similarly,
custom interval speed workouts can be designed by the trainer where
each segment of the workout utilizes a different speed. Here, it is
desirable to provide the user with an aural warning over a speaker
64 shown in FIG. 2 of speed changes to prevent surprise
transitions. Thus, it is possible to provide a wide variety of
custom workouts where the user or trainer can define a number of
workout parameters such as the initial speed, duration of the
workout, distance and calories burned.
FIG. 8 is a flow chart illustrating the operation of the control
system 34 to execute workout programs where, as indicated a pair of
blocks 66 and 68, the control system 34 also permits the user to
switch workout programs on the fly by merely pressing one of the
program buttons 16 without having to stop the treadmill 10 and
start a new workout program. Specifically, the user can select a
new workout program having different parameters including, for
example, speed, incline, intervals and heart rate while in the
midst of a first workout program.
FIGS. 9 and 10A B show in flow chart form the logic of an automatic
cooldown feature that can be implemented in the control system 34.
In the protocol described in FIGS. 9 and 10A B, cooldown will begin
automatically upon conclusion of the user's workout. Here, the
duration of the cooldown is determined by the length of time of the
user's workout or can also be terminated by the user's heart rate
reaching 60% of maximal if a heart rate management program of the
type identified above is being used. In addition, cooldown can be
initiated by the user at any time by pressing a cooldown button 70
located on the control panel 12. In the system described in FIGS. 9
and 10A B, the cooldown sequence will normally automatically
progress each minute except that the user can advance the cooldown
by pressing the cooldown button 70 or extend the cooldown by using
arrow keys on the keypad 24.
Another feature of the treadmill 10 is the provision in the system
controller 34 to only display information on the user displays 14
that is relevant to the manner in which the treadmill 10 is being
used. Because the number of discrete displays on the user displays
14 is limited and non-relevant information can be annoying to a
user, it is desirable to provide only that information to the user
that is most useful for the particular workout that he is
performing at the moment. For example, the treadmill 10 having its
incline mechanism 32 set at something other than zero will
accumulate and can display on one the displays 14 the total
vertical distance the user has climbed during the workout. However,
if the treadmill 10 is set at zero inclination, the user might
become annoyed with a message on the displays 14 always having a
zero reading. Thus, in the preferred embodiment of the invention
the system controller 40 of the control system of 34 will be
programed to only generate a total climb figure on one of the
displays 14 at periodic intervals such as 5 minutes. By the same
token, generally only runners are interested in their pace such as
minutes per mile, so this information will not be displayed by the
system controller 40 on the displays 14 for walkers. Also, calories
per hour, watts and mets will only be displayed on one of the
displays 14 upon a workload change such as a significant speed or
incline change so as to eliminate the same message from being
displayed on the displays 14 over and over.
FIG. 11 is a data flow diagram and FIGS. 12A C are flow charts
illustrating the logic applied by the system controller 40 to
implement a user detect feature for use with the treadmill 10. In
order to overcome the problem of users leaving treadmills before
the end of workout programs which can result in treadmills
continuing to run for an extended period of time, the treadmill 10
can be provided with a mechanism for stopping the belt 28 that is
responsive to various criteria for indicating whether or not the
user is on the treadmill 10. Preferably, all of the various
resources of information available to the system 34 are used to
control this feature. For example, information can be obtained from
the motor controller 36 to determine the load on the motor 38 for a
predetermined speed which would indicate the presence of a user on
the belt 28. This information can also include timing of the use of
the key pad 24, the inclination mechanism 32 and use of the pulse
sensors 46. In addition, detectors such as an IR detector 72, a
weight sensor 74 using a load cell, and a foot pressure sensor 76
can be used to infer the presence of a user on the belt 28. As
indicated in FIGS. 11 and 12C, combinations of this type of
information in combination with information received from the IR
receiver/transmitter 72 can be used to optimize the determination
of the presence of a user on the belt 28.
It is also possible to use a detector such as the infrared
receiver/transmitter 72 shown in FIGS. 1 and 2 alone as a user
detect mechanism. In the preferred embodiment of this detector, a
receiver/transmitter 72 transmits an infrared beam which is
amplitude modulated at 40 Khz for 500 .mu.secs every 500 msec. If a
user is on the treadmill belt 28, some portion of the light will be
reflected back to the receiver/transmitter 72 which is sensitive
not only to the frequency of the beam but also to the 40 Khz
modulation. This provides the system controller 40 with an
indication that the user is on the treadmill belt 28. In this
embodiment, when the user leaves the treadmill 10 with the belt 28
still moving and the IR detector 72 does not detect the user, the
system controller 40 will cause the treadmill 10 to wait a
predetermined time, such as 10 seconds, and then switch to a pause
mode. In the pause mode the belt 28 is stopped and a "pause"
message is displayed on one of the displays 14. If there is no user
input for another predetermined time to the control system 34, such
as 1 minute, the pause mode will time out and the system 34 will
reset. In this mode the system controller 40 will also cause the
treadmill inclination mechanism 32 to return the inclination of the
treadmill 10 to a zero. It should be noted that types of active
detectors other than the IR detector 72 can be used such as
transmitter receiver combinations using sound or radio
frequencies.
FIGS. 11 and 12A C provide a more detailed description of the
preferred logic and data flow used in the preferred embodiment of
the user detect feature. FIG. 11 is a data flow diagram that
represents the flow of data from various sensors such as the pulse
sensors 46, the keypad 24, the motor controller 36 and the IR
sensor 72 to the system controller 40 in FIG. 1. FIGS. 12A C
illustrate the logic performed by the system controller 40 on this
data in implementing the user detect feature. With reference to the
diagram of FIG. 11, the pulse sensor 46 and the keyboard 24 are
periodically monitored, as shown by at a data circle 78 and a data
circle 80 for example every one second as indicated by a dashed
line 82 and a dashed line 84 respectively. An indication that the
user is operating the treadmill 10 based on the information in the
data circles 78 and 80 is transmitted, as illustrated by a line 82
and a line 88, to a data circle 90 representing the user detect
logic or "monitor user presence" and is implemented in the system
controller 40. This user detect logic as indicated by the monitor
user presence circle 90 in FIG. 11 is described in more detail in
connection with FIG. 12C and is triggered every one second as
indicated by a dashed line 92.
Similarly, the motor controller 36 is monitored as indicated by a
data circle 94 at periodic intervals such as every one second as
indicated by a dashed line 96. The object of monitoring the motor
control is to determine if the load on the motor 36 reflects the
presence of a user on the belt 28. For example, if there is a user
on the belt 28, it will take more energy to move the belt 28 for a
given speed which will be reflected in various parameters of the
motor controller 36 as it operates to maintain a predetermined or
set speed of the motor 38. In the preferred embodiment, where the
motor 38 is an AC motor such parameters as the voltage applied to
the motor's armature windings and measurements of motor slip can be
used for comparison to a predetermined belt or motor speed either
selected by the user or by a workout program being executed by the
system controller 40. It will be understood that the parameters
used for this load versus speed comparison will depend upon the
type of motor and motor controller being used in the treadmill and
that for instance in a DC motor, motor current can be used. Also,
in the preferred embodiment other criteria is used in connection
with the motor control user presence determination 94. For example,
as illustrated by the criteria in a box 96, the present incline of
the inclination mechanism 32, inclination mechanism history and
speed motor history can be used. This criteria provides an
indication as to whether there are other factors that might affect
the speed vs load relationship other than a user on the belt 28.
For example, if the incline of the deck 30 has recently changed or
is too high or if the motor speed has recently changed, the speed
versus load relationship might not necessarily be representative of
a user on the belt 28. As indicated by a data circle 98, the
stability of this criterial is used as a check on the reliability
of the motor load versus speed information 94. This information, as
indicated by a set of lines 100A C is also used by the motor sense
logic 90.
The preferred operation of the IR detector 72 in determining user
presence on the belt 28 is illustrated in FIG. 11 and FIG. 12A and
FIG. 12B. Overall operation of the IR detector 72 is indicated by a
data circle 102 in FIG. 11 and detailed in FIG. 12A. In this
embodiment, the read user sense procedure 102 is called every 250
microseconds and as indicated in a set of decision blocks 104 and
106 a determination is made as to whether the IR LED is on and
whether the IR receiver detects a user. If a user is detected, the
routine 102 increments a user present history counter 107 as shown
at a block 108. Then as indicated by a decision block 110 and a set
blocks 112 and 114 the IR LED 72A is reset.
Also in the preferred embodiment, at one second intervals, as shown
in FIG. 11 and FIG. 12B, a monitor user sense procedure indicated
by a data circle 116 is called by the system controller 40 as
indicated by a dashed line 117. If as indicated at a decision block
118 the user detect feature indicated by the term "smart stop" in
FIG. 12B is not enabled, a flag is set to true at a block 120
indicating to the system controller 40 that there is a user present
so that the treadmill 10 will not go into the pause mode. A ten
second timer indicated at 122 is used with this procedure. If the
smart stop feature is enabled and the ten second interval counted
by the timer 122 has expired as indicated by a decision block 124
and the user present history counter 107 shows an absence of a user
on the belt 28 as indicated by a decision block 126, the user
present flag is set to false at a block 126 otherwise it is set to
true at a block 130. This procedure 116 also resets the ten second
timer 122 to ten seconds at a block 130 if the ten second interval
has expired and as indicated at a block and resets the user present
history counter 107 to zero at a block 134. In this manner, the
monitor user sense routine 116 is able to determine if the IR
detector has not detected a user on the belt 28 for a period of ten
seconds.
The preferred of the user detect or monitor user sense logic 90 is
illustrated in FIG. 12C. As described above this routine 90 is
called every one second by the system controller 40. First, as
indicated at a block 136, the user present flag is set to true and
then the monitor user sense routine 116 is called. Then, as
indicated by a series of decision blocks 138, 140 and 142 the
routine 90 checks various treadmill operating parameters including
whether hands have been detected on the pulse sensors 46, if the
key pad 24 has been used recently and if the user has changed the
incline mechanism 32 or speed recently based on information shown
in the box 96 of FIG. 11. In addition the user sense 116 is checked
to determine if a user has been detected on the belt 28. If the
answers to any of these questions is yes, the routine 90 exits. If
the answer is no, then the routine 90 checks the motor controller
presence likelihood or inference data 98 at a decision box 146 and
if it appears that the user is not on the belt 28, the routine 90
sets the user present flag true at a box and then proceeds to a
treadmill pause and reset routine indicated by a box 150 and a
dashed line in FIG. 11. In the preferred embodiment as discussed
above, the treadmill 10 will enter the pause mode for one minute
and then if there is no further user activity, the system
controller 40 will reset the treadmill 10. However, if the motor
controller presence inference data 98 at a decision box 146 can not
make an inference that the user has left the belt 28, the routine
90 then first checks at a decision box 152 to determine if the data
98 is too unreliable to use this data by, for example, checking the
information in the box 96. If the information 96 suggests that the
motor controller data is too unreliable, the routine 90 then
branches to the pause and reset routine 150. Otherwise, the routine
90 then checks at a decision box 154 to determine if the the motor
controller presence inference routine 98 has been disabled and if
it has then branches to the pause and reset routine 150.
Another feature of the treadmill 10 is a frame tag module 77 as
shown in FIG. 2 which is preferably secured to one of the side
frames of the treadmill 10 and is adapted to communicate with the
system controller 40. In the preferred embodiment, the frame tag
module 77 includes a nonvolatile electrically erasable programmable
memory chip (EEPROM) 79 and a real time clock 81. Included with the
EEPROM 79 is a 10 year battery (not shown). Preferably, the clock
81 will be initialized to GMT at the time of manufacture of the
treadmill 10 and then set to local time when the treadmill 10 is
installed at a customer location and each entry into the EEPROM 79
will be date stamped by the clock 81. In normal operation, each
time the treadmill 10 is powered up, the system controller 40 will
retrieve treadmill configuration information from the frame tag
module 77. Included in this information can be such data items as
English or metric units for display on the displays 14, maximum and
minimum treadmill belt speeds, language selection as well as
accumulated treadmill operational data such as the total time, the
total miles, the belt time, the belt miles and the number of
program selections. Preferably, when the treadmill 10 is in
operation, the system controller 40 will cause data relating to
each user workout and operation of the treadmill 10 to be stored in
the EEPROM 79 along with all information relating to system errors
that might occur. In addition, all information relating to any
service procedure is stored in the EEPROM 79. This information
stored in the EEPROM 79 including set up, operational and service
data can be displayed on the displays 14 by the system controller
40 so that the history of the treadmill 10 can be read by service
personnel. One of the advantages of the frame tag module 77 is if
any of the major electrical or mechanical components of the
treadmill 10 is replaced, the operational history of the treadmill
10 is not lost. For example, if the control panel 12 containing the
system controller 40, is replaced the treadmill's history will not
be lost. The frame tag module 77 can also be replaced without
losing the machine's history. In this case, because when the
treadmill 10 is powered up, this information is transmitted from
the old frame tag module 77 to the system controller 40, this
information can then be transmitted back to the new frame tag
module 77 after it has been installed on the treadmill 10 thereby
maintaining the treadmill's history with the treadmill 10.
FIG. 13 is a flow chart illustrating the preferred operation of a
time in heart rate zone routine 156 implemented in the system
controller 40 of the treadmill 10. In this feature, the user's
heart rate is continuously monitored by the heart rate monitoring
system using the pulse sensors 46 while in a preprogramed heart
rate workout such as fat burn or cardio workout to provide the user
a display on one of the displays 14 of an indication of the time in
a predetermined heart rate zone. The user's heart rate zone is
determined by comparing the user's actual heart rate with that of
the target heart rate as entered by the user on the key pad 24 or
calculated for the user by the heart rate management system. After
the routine 156 establishes that the workout program is a heart
rate workout as indicated at a decision block 158, the routine 156
then determines at a decision box 160 whether the user has entered
his own target heart rate using the key pad 24. If the user has
input his desired target heart rate, the appropriate heart rate
zone is calculated as indicated by a box 162. In this example, the
zone is preferably + or -10 beats from the target heart rate. In
the event that the user has not entered his target heart rate, a
decision block 164 indicates that the routine 156 determines if the
programed workout is a Cardio workout or a fat burn workout and the
desired heart rate zone is calculated as indicated by a block 166
or a block 168. For the fat burn workout, the target is preferably
between 60 and 72 percent of the calculated maximal heart rate of
(220-age). For Cardio workout, the target is preferably between 72
and 85 percent of the calculated maximal heart rate of (220-Age).
After the appropriate heart rate zone has been calculated the
routine 156 clears a time in zone clock as shown at a block
170.
As shown in FIG. 13, if the user is in the heart rate zone as
determined by a decision block 172 the time in zone clock is
incremented and a heart rate in zone flag is set to true as shown
by a block 174, each second is accumulated and can be displayed on
one of the displays 14 or a dedicated TIME-IN-ZONE display (not
shown.) If the user is in the heart rate zone and has attained his
target heart rate previously as indicated by a decision block 176
and then an entry message such as "ENTERING TARGET HEART RATE ZONE"
can be displayed on the displays 14 or the dedicated display as
shown by a block 178. It is preferred that visual feedback, via a
live heart rate zone chart on the displays 14 be used to
graphically show the user his heart rate relative to the heart rate
zone. On the other hand, if the user's heart rate was in the zone,
but then changes so as to no longer be in the zone as determined at
a decision block 180, an exit message such as "LEAVING TARGET HEART
RATE ZONE" is displayed on the displays 14 or the dedicated display
as shown at a block 182 and the heart rate in zone flag is set to
be false as indicated by a block 184. In the preferred embodiment,
heart rate programs implemented in the system controller 40 with
time in zone as the goal can be selected by the user with one of
the workout control buttons 16. Additionally, at the conclusion of
a workout, a percentage of the workout time in the heart rate zone
can be displayed on one of the displays 14. This information can
also be stored, either in the control system 34 or the frame tag 76
or via a network connection, to provide tracking information so the
users can ascertain progress in their workout routines. This
information is useful to determine the overall efficiency of the
workout time, as it is believed that the most efficient calorie
burn may occur while in the heart rate zone. It is also possible to
provide real-time recommendations to the user as to how to improve
his time in zone efficiency by, for example, instructing the user
via the displays 14 to adjust speed, incline, resistance, etc. In
addition, it is possible to allow the exercise equipment such as
the treadmill 10, possibly with user acceptance, to automatically
perform these adjustments to create a TIME-IN-ZONE MANAGEMENT
workout. Although the above system has been described in the
embodiment of the treadmill 10, this feature can equally be used in
other types of aerobic type exercise equipment having heart rate
management systems such as exercise bikes, step machines and
elliptical steppers. Also, the above system can use types of heart
rate monitors other than the pulse sensor or heart rate monitor
system 46 described above such as monitors that transmit a pulse
signal from a pulse sensor belted to a user to a receiver on the
exercise apparatus.
It should be noted that the various features described above have
been described in terms of their preferred embodiments in the
context of the particular treadmill 10 and control system 34
disclosed herein. The manner in which these features can be
implemented will depend upon a number of factors including the
nature of the treadmill and control system. With respect to
programing, there are many different types of hardware and
programing languages and techniques that would be suitable for
implementing these features that would fall within the scope of
this invention.
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